The  Laboratory  of Systems Modelling and Dependability

The  Laboratory  of Systems Modelling and Depensability was set up in 1995 and given the status of ‘Jeune Equipe’ (JE  1999) and ‘Equipe d’Accueil’ (EA  3173) in 2000.The Information Science and Technologies Institute was formed in 2004 with this team and two other UTT laboratories. It associated immediately with the National Scientific Research Centre CNRS as a ‘Formation de Recherche en Evolution’ (FRE 2732). Since 1 January 2006 all the UTT research groups have come together within the Charles Delaunay Institute, in association with the CNRS with FRE status (FR 2848)

The LM2S Team has defined its research objectives on the theme of dependability.
Better performance, more drastic security measures,functionality and cost demands are all antagonistic objectives for research which must be conciliated with the best possible systems management throughout  lifespan.
In order to help decision-making in this context where questions of dependability and security are omnipresent, systems surveillance tools and quantitative performance assessment models for safe running need to be available.

The LM2S researchers are working along the  two following theme axes, using a decision statistics, diagnostic, reliability and maintenance approach

1 - Systems Surveillance 

Surveillance algorithm design involves overcoming two essentially antagonistic demands. The first is sufficient sensitivity to breakdowns which are to be detected and situated and the other is insensitivity to pollution parameters: disruption, errors and uncertainty.
Along with these algorithms, error tolerance techniques and reconfiguration techniques must guarantee safe functioning when faced with a breakdown, be it permanent or provisional
The following systems surveillance research axes are explored by LM2S :
A probability approach to surveillance and diagnostic ; learning and recognising  shapes and situations ; distributed surveillance methods.

2 - Systems Reliability and Maintenance

The best management of an industrial system throughout its lifespan (design, use, taking apart) seeks to find a compromise between often conflicting objectives of economic performance and dependable performance.
To help in decision-making and to satisfy increasingly urgent social and economic demands in terms of dependability and security, systems methods analysis must be used as well as quantitative performance assessment models  as far as dependable functioning is concerned (reliability and maintenance ).
LM2S research concentrates on this final point and aims to develop stochaistic approaches to dependably running modellisation problems.

The Team has defined its research objectives from the theme of dependable systems functioning

This theme covers a potentially extremely vast field of research from the definition of captors  to the analysis of deteriorated-mode functioning through all the modelling phases of complex systems surveillance, detection and diagnostic.

The pluri-disciplinary dimension of the Team constitutes one of the major assets for future research.